Postfire Plant Community Dynamics in the Mediterranean Basin

Trabaud, L.

doi:10.1007/978-1-4613-8395-6_1

Cited by 124 publications

(132 citation statements)

References 11 publications

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“…Both treatments eliminate the aboveground biomass, keeping the sprouting organs and seeds viable in these zones. Both mechanisms stimulate regeneration (Trabaud, 1987;Ojeda et al, 1996). The main difference between the two treatments is that burning adds nutrients to the soil, mainly nitrogen (in general, these areas are nitrogen limited) (De Bano and Conrad, 1978;Kutiel and Kutiel, 1989;Marcos, 1997), which the species present can use.…”

Section: Discussionmentioning

confidence: 99%

“…Vegetation recovery after perturbations is started by seedling recruitment from a dormant seed bank or by sprouting from below-ground vegetative buds (Keeley, 1986;Trabaud, 1987;Ojeda et al, 1996;Lloret and Vilá, 1997). Life-form and other life historical features interact with regeneration strategies and with physical and chemical components of the environment, creating a complex framework within which regeneration takes place (Clemente et al, 1996).…”

Section: Introductionmentioning

confidence: 99%

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Secondary succession after perturbations in a shrubland community

2002

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Shrubland responses to experimental burning, cutting and ploughing treatments were studied over 15 years in two shrubland communities dominated by Erica australis. The treatments represent the most frequent forms of anthropogenic disturbances experienced by these communities throughout their history. The response to burning and cutting treatments is similar, and the succession process is characterised as autosuccession. The highest values for herbaceous annuals and perennials were observed in the third and fourth years. Generally, herbaceous species remain present throughout the study period, while woody taxa ones increase their cover values over time. The quantity of herbaceous species present is in inverse proportion to the quantity of woody taxa. The woody species that appear immediately after treatments are sprouting species, namely Erica australis and Arctostaphylos uva-ursi. The response to ploughing is slower, reflecting the recovery mechanism (seedlings). However, after 15 years, there are no significant differences in regeneration between treatments. The first stages of this post-ploughing succession are dominated by annual species until the fourth or fifth years, after which woody species begin to dominate and herbaceous taxa decrease considerably. Woody species with high germination values are Halimium alyssoides and Halimium umbellatum. These shrubland communities have a very high resilience to such perturbations and start regenerating rapidly, reaching the original state in about 9 years. The appearance of the climax arboreal species of the area, Quercus pyrenaica, when it comes from germination, occurs 15 years after the perturbations.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Secondary succession after perturbations in a shrubland community

2002

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“…In these pine stand communities after burning, species with different recovery strategies appear: some are obligate seeders like Pinus sylvestris, Cistus laurifolius, Halimium alyssoides and Halimium umbellatum, others use vegetative sprouting, and finally there are those that can use both mechanisms, such as Genista florida. Species that can regenerate both by sprouting and seeding tend to reproduce by sprouting, since it allows them to quickly reoccupy the available space [26,41].…”

Section: Discussionmentioning

confidence: 99%

Predicting the probability of seed germination in Pinus sylvestris L. and four competitor shrub species after fire

2003

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-Knowledge of the regeneration of competing shrub species after wildfire in Scots pine stands is essential for the regeneration of this tree species. The germination capability of seeds is modified by the temperature reached during a fire and the length of time that seeds are subjected to high temperatures. The probability of germination was studied in the laboratory for Scots pine (Pinus sylvestris) and four shrub species characteristic of the understory in Scots pine stands in northern Spain (Cistus laurifolius, Halimium umbellatum, Halimium alyssoides and Genista florida). Germination probability was studied with a logistic model that uses duration of exposure to the fire, the temperature and the interaction of both as independent variables. Results show a higher germination rate in shrub species at high temperature than for Scots pine. Thus by limiting competition between Scots pine and understory species, using prescribed burning or mechanical site preparation, Scots pine can regenerate successfully and quickly. This model can aid management decisions in this area.germination / scots pine / shrub species / thermal shock Résumé -Prédiction des probabilités de germination après le feu de Pinus sylvestris L. et de quatre espèces de garrigue. La régénération des espèces de garrigue après le feu est un facteur déterminant pour la réinstallation de Pinus sylvestris. La température pendant l'incendie et la durée de l'exposition modifient la capacité de germination des graines. Nous avons étudié au laboratoire la germination de Pinus sylvestris et de quatre espèces de garrigue (Cistus laurifolius, Halimium umbellatum, Halimium alyssoides et Genista Florida) qui sont typiques des forêts dominées par Pinus sylvestris. Afin de définir les probabilités de germination, on a utilisé la durée de l'exposition, la température et son interaction comme variables indépendantes, dans un modèle logistique. Les résultés de la germination suggèrent que les graines des espèces de garrigue présentent une meilleure germination après exposition à des hautes températures que les graines de Pinus sylvestris. En conséquence, les feux prescrits ou les entretiens mécaniques peuvent provoquer une régénération plus rapide et plus satisfaisante de Pinus sylvestris. dynamique de germination / Pinus sylvestris / espèces du maquis / feu de forêt

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“…Wildfires are considered the most important disturbance in Mediterranean-type ecosystems [38]. During recent decades, the number and, especially, the surface burned by forest fires in the Mediterranean Basin has increased dramatically with some catastrophic wildland fires being responsible for most of the burned areas [39].…”

Section: Introductionmentioning

confidence: 99%

“…Many Mediterranean plant species exhibit the ability to recover readily after fire, either through the germination of pro-* Corresponding author: Anselm.Rodrigo@uab.es tected seeds stored in the soil seed bank or in the canopy [24], or by resprouting from aerial or subterranean fire-resistant buds [17,21,26,38]. The resprouting ability of some of the most dominant tree and shrub species in the Mediterranean Basin is well known (e.g.…”

Section: Introductionmentioning

confidence: 99%

Post-fire resprouting ability of 15 non-dominant shrub and tree species in Mediterranean areas of NE Spain

2007

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-Post-fire resprouting ability of the non-dominant tree and shrub species of the Mediterranean Basin has not yet been experimentally tested, although this group contributes to maintain the richness of Mediterranean plant communities. In this study, we have analyzed the post-fire recovery ability of 15 woody species that occur in relatively low abundance in dry and sub humid Mediterranean areas in NE of Spain. The main goals have been: (i) to determine experimentally the post-fire resprouting ability of these species and (ii) to compare the abundance of these species in areas affected by wildland fires and in unburned areas. We have observed a high resprouting ability after prescribed burning of most species except for Juniperus communis and J. phoenicea which showed a null resprouting. As the species with high resprouting ability showed similar presence in burned and unburned areas, we can conclude that wildfires are not a factor that constrains the presence of these species in Mediterranean woodlands. However, we found a reduction in the abundance of J. communis and J. phoenicea at the regional level after wildland fires. distribution area / prescribed burning / resprouting / woody species / Juniperus Résumé -Capacité à rejeter de souche de 15 espèces d'arbres et d'arbustes secondaires de la région méditerranéenne après incendie. La capacité à rejeter de souche après incendie d'espèces d'arbres et d'arbustes non dominants de la région méditerranéenne est peu connue malgré l'importance de la contribution de ce groupe à la richesse des communautés végétales. Dans cette étude, nous avons analysé la capacité à rejeter de souche de 15 espèces ligneuses présentes en faible abondance dans les zones semi arides et subhumides méditerranéennes du nord-est de l'Espagne. Les principaux objectifs étaient : (i) de déterminer expérimentalement la capacité de rejeter après incendie et (ii) de comparer l'abondance de ces espèces dans des zones brûlées et non brûlées. Toutes les espèces testées présentaient une grande capacité à rejeter de souche à l'exception de Juniperus communis et J. phoenicea, qui ont montré une incapacité complète à rejeter de souche après incendie. Les espèces présentant une grande capacité de rejet présentent des abondances similaires dans des zones brûlées et non brûlées. Nous pouvons conclure que les incendies ne sont pas le facteur limitant leur présence dans les forêts méditerranéennes. Au contraire, les espèces sensibles à faible capacité de rejet comme J. communis et J. phoenicea, ont vu leur abondance baisser à l'échelle régionale après incendie. distribution des espèces / incendies de forêt / rejet de souche / brûlis / Juniperus

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Postfire Plant Community Dynamics in the Mediterranean Basin

Cited by 124 publications

References 11 publications

Secondary succession after perturbations in a shrubland community

Secondary succession after perturbations in a shrubland community

Predicting the probability of seed germination in Pinus sylvestris L. and four competitor shrub species after fire

Post-fire resprouting ability of 15 non-dominant shrub and tree species in Mediterranean areas of NE Spain

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